Results 131 to 140 of about 357,503 (297)
Testing When a Parameter Is on the Boundary of the Maintained Hypothesis [PDF]
This paper considers testing problems where several of the standard regularity conditions fail to hold. We consider the case where (i) parameter vectors in the null hypothesis may lie on the boundary of the maintained hypothesis and (ii) there may be a ...
Donald W.K. Andrews
core
Food insecurity and unemployment among immigrants in the United States
American Journal of Agricultural Economics, EarlyView.Abstract Immigrants can be more vulnerable to economic downturns and, during periods of economic hardship, more likely to experience food insecurity compared to natives. This study examines the differential effect of the unemployment rate on the probability of being food insecure among diverse groups of immigrant households relative to natives in the ...
Siwen Zhou +3 more
wiley +1 more source
Evaluation of Statistical Methods for Clustered Eye Data with Skewed Distribution
Ophthalmology SciencePurpose: To evaluate the performance of various analysis approaches for skewed correlated eye data from 2 eyes of a subject in the same comparison group, which is common in ophthalmology and vision research.
Sifan Zhang +3 more
doaj +1 more source
American Journal of Community Psychology, EarlyView.Abstract Although peer support is central to the social model approach emphasized in sober living houses (SLHs), no longitudinal studies have examined helping among SLH residents. This longitudinal study examined benefits of helping in three contexts among SLH residents. Data were from 205 participants entering 28 SLHs across 2021–2023. Interviews were
Sarah E. Zemore +4 more
wiley +1 more source
Testing for Causality in Variance using Multivariate GARCH Models [PDF]
, 2004 Tests of causality in variance in multiple time series have been proposed recently, based on residuals of estimated univariate models. Although such tests are applied frequently little is known about their power properties.
Hafner, Christian M., Herwartz, Helmut
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American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.ABSTRACT Evidence on developmental milestones in children with arthrogryposis multiplex congenita (AMC) under the age of five is scarce. This multisite cross‐sectional study described developmental status and examined factors associated with milestone attainment in 143 children aged 0–66 months from a pediatric AMC Registry.
Ahlam Zidan +13 more
wiley +1 more source
Hypothesis Testing of Population Percentiles via the Wald Test with Bootstrap Variance Estimates. [PDF]
Open J Stat, 2016 Johnson WD, Romer JE.
europepmc +1 more source
A Portmanteau Test for Serially Correlated Errors in Fixed Effects Models [PDF]
We propose a portmanteau test for serial correlation of the error term in a fixed effects model. The test is derived as a conditional Lagrange multiplier test, but it also has a straightforward Wald test interpretation.
Atsushi Inoue, Gary Solon
core
Animal Models and Experimental Medicine, EarlyView.This study presents an integrative multi‐omics framework to uncover the molecular mechanisms and potential biomarkers of chronic thromboembolic pulmonary hypertension (CTEPH). Anthropometric and biochemical data were correlated using canonical correlation analysis, revealing key cardiometabolic associations. Single‐cell RNA sequencing identified immune
Xiaopeng Liu +4 more
wiley +1 more source
Relapses, Comorbidities, and Predictors of Outcome in Anti‐GABAA Receptor Encephalitis
Annals of Neurology, EarlyView.Objectives To characterize the magnetic resonance imaging (MRI) lesion dynamics, comorbidities, predictors of relapse, and outcomes in anti‐γ‐aminobutyric acid type A receptor (GABAAR) encephalitis, and assess the utility of LIM‐domain‐only‐protein 5 (LMO5) antibodies as tumor markers.
Claudia Papi +33 more
wiley +1 more source